Paper
27 April 2009 Determination of particle concentration in the air using a digital SLR camera
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Abstract
Many researches showed that pollution particles are associated with adverse health effects. These particles are 10 micrometers in diameter or smaller (PM10). Now the challenge is to develop a better technique for monitoring the concentration of these particles. In this study, we intend to use a Single Lens Reflex (SLR) camera to determine particle concentration in the air using our own developed algorithm. This algorithm was developed based on the regression analysis of relationship between the measured reflectance and the reflected components from a surface material and the atmosphere. This algorithm is used to convert multispectral image pixel values acquired by this camera into quantitative values of the concentrations of PM10. These computed PM10 concentrations were compared to other standard values measured by a DustTrakTM meter. The validated result of the newly develop algorithm produced a high degree of accuracy as indicated by high correlation coefficient (R2) and low root-mean-square-error (RMS).
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
C. J. Wong, M. Z. Mat Jafri, K. Abdullah, and H. S. Lim "Determination of particle concentration in the air using a digital SLR camera", Proc. SPIE 7334, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XV, 73341I (27 April 2009); https://doi.org/10.1117/12.820326
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KEYWORDS
Cameras

Particles

Reflectivity

Algorithm development

Atmospheric particles

Digital cameras

Aerosols

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